지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.11
- 수록면
- 764 - 770 (7page)
이용수
초록· 키워드
오류제보하기
A crack identification method using an equivalent bending stiffness and natural frequency for cracked beam is presented. Modal properties of cantilever beam with a tip mass is identified by applying the boundary conditions to a general solution. An equivalent bending stiffness for cracked beam based on an energy method is used to identify natural frequencies of cantilever thin-walled pipe with a tip mass, which has a through-the-thickness crack, subjected to bending. The identified natural frequencies of the cracked beam are used in constructing training patterns of neural networks. Then crack location and size are identified using a committee of the neural networks. Crack detection was carried out for an example beam using the proposed method, and the identified crack locations and sizes agree reasonably well with the exact values.
목차
ABSTRACT
1. 서론
2. 말단질량을 갖는 캔틸레버 보의 모드특성
3. 균열보의 등가휨강성 및 고유 주파수
4. 균열위치 및 균열크기 추정
5. 결론
References
참고문헌 (10)
참고문헌 신청
[학술지(정기간행물)] - Dilena, M. / 2011 / Detecting Cracks in Pipes Filled with Fluid from Changes in Natural Frequencies / Mechanical Systems and Signal Processing 25 (8) : 3186 ~ 3197
[학술지(정기간행물)] - Wang, Y. M. / 2011 / Daubechies Wavelet Finite Element Method and Genetic Algorithm for Detection of Pipe Crack / Nondestructive Testing and Evaluation 26 (1) : 87 ~ 99
[학술지(정기간행물)] - Ye, J. / 2010 / Pipe Crack Identification Based on Finite Element Method of Second Generation Wavelets / Mechanical Systems and Signal Processing 24 (2) : 379 ~ 393
[학술지(정기간행물)] - Naniwadekar, M. R. / 2008 / On Prediction of Crack in Different Orientations in Pipe Using Frequency Based Approach / Mechanical Systems and Signal Processing 22 (3) : 693 ~ 708
[학술지(정기간행물)] - Murigendrappa, S. M. / 2004 / Frequency-based Experimental and Theoretical Identification of Multiple Cracks in Straight Pipes Filled with Fluid / NDT&E International 37 (6) : 431 ~ 438
[학술지(정기간행물)] - Wang, Y. M. / 2011 / Daubechies Wavelet Finite Element Method and Genetic Algorithm for Detection of Pipe Crack / Nondestructive Testing and Evaluation 26 (1) : 87 ~ 99
[학술지(정기간행물)] - Ye, J. / 2010 / Pipe Crack Identification Based on Finite Element Method of Second Generation Wavelets / Mechanical Systems and Signal Processing 24 (2) : 379 ~ 393
[학술지(정기간행물)] - Naniwadekar, M. R. / 2008 / On Prediction of Crack in Different Orientations in Pipe Using Frequency Based Approach / Mechanical Systems and Signal Processing 22 (3) : 693 ~ 708
[학술지(정기간행물)] - Murigendrappa, S. M. / 2004 / Frequency-based Experimental and Theoretical Identification of Multiple Cracks in Straight Pipes Filled with Fluid / NDT&E International 37 (6) : 431 ~ 438
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UCI(KEPA) : I410-ECN-0101-2016-539-002024692